patpatpat

Looking for some help in diagnosing a misfire on my 958.2 w/VR6 base engine. I don't have any CEL codes. Photos are livestream data during idle after 20min drive. You can really hear the pinging noise inside the cabin during hard acceleration. Normal city drive - no pinging that I could hear.

Thanks in advance

• Always 93 gas
• coils and plugs 10k miles old
• liqi moly valve cleaner 5k miles ago. Caused O2 sensor fault (bank 1 sensor 1), but never came back after code removal
• 100k mi on the clock

patpatpat

just checked plug and coil. Both looked normal

garrett376

With no fault codes, and lots of pinging, bad gas would be the #1 reason. Get rid of that gas, get a new batch, and re-test.

patpatpat

I will give new gas a shot. All my fill ups has been from the same Mobil station here in the east coast.